The Godzilla: King of the Monsters credits could tease the existence of Prometheus, a creature that was conceived as a giant-size version of Frankenstein's monster. If so, the MonsterVerse could introduce a monster that was almost King Kong's original enemy.
For several years now, Legendary and Warner Bros. have been building up to an epic showdown between the king of the monsters and the king of the primates. Directed by Adam Wingard, Godzilla vs. Kong will serve as the fourth installment in the MonsterVerse. The film will mark the second time the two pop culture icons have clashed on the big screen. The first was Toho's 1962 crossover movie, King Kong vs. Godzilla. In the movie, King Kong came out on top, but circumstances may not be the same when the two Titans come to blows in Godzilla vs. Kong.
Their highly-anticipated battle was set up in Godzilla: King of the Monsters. Furthermore, Godzilla: King of the Monsters' credits address the aftermath of Godzilla's victory over Ghidorah and drops a number of reveals about what happens next through newspaper clippings and article headlines. What's most noteworthy about the credits is what it reveals about Kong and Skull Island. Titans are coming to Skull Island, which could indicate that Skull Island will be the backdrop for Godzilla's fight with Kong. The fight could be a rematch of sorts, as suggested by a cave painting that depicts the two fighting each other. Also hidden in the credits is a reference to one of Monarch's projects, which may relate directly to Kong's past.
Monarch Has Attempted To Create Their Own Titans
In the article "Monarch Boosts Their Forces Around Skull Island", it's revealed that a scientist named De La Rosa has some interesting claims about Monarch's secret activities on Skull Island. According to De La Rosa, Monarch was building a "mechanized giant" on Skull Island. Before that, Monarch was engaged in other Titan-related experiments. The organization was also working on creating organic Titans. Their work is apparently the cause of several incidents involving Titans.
Monarch's reasons for such experiments (if De La Rosa is to be believed) are open to speculation. These projects could have gone into development decades ago, long before it was agreed upon that Godzilla could be an ally to humans. Monarch depended on Godzilla to defeat King Ghidorah, but there may have been a time when Monarch didn't have a reasonable expectation that Godzilla would rise up to defend the planet. In which case, Monarch may have felt it was necessary to arm themselves with a weapon capable defeating Titans. Perhaps their solution to an attack from Titans was a Titan of their own.
Theory: Monarch Tried To Create Kong's Original Enemy
The line about a "mechanized giant" on Skull Island could have been a reference to one of Godzilla's greatest enemies, Mechagodzilla. But what of the organic Titans mentioned in the same article? This, too, could have some level of importance in the MonsterVerse. In fact, it could have something to do with a monster who almost fought Kong in his first Toho movie.
In the 1960s, King Kong creator Willis H. O'Brien wrote a treatment for a movie titled King Kong vs. Prometheus. Like the original King Kong movie, this film would have used stop motion animation. As for the story, the King Kong sequel would have seen the titular ape go up against Prometheus, a creature created by the grandson of Dr. Frankenstein. So basically the plan was for Kong to fight a giant-size version of Frankenstein's monster. Unfortunately, American studios weren't interested in the treatment, so O'Brien sold it to Toho, who re-purposed it to make what would become the legendary grudge match, King Kong vs. Godzilla. Prometheus was removed from the story and replaced by Toho's own monster, Godzilla.
After King Kong vs. Godzilla, Kong only starred in one more Toho movie, King Kong Escapes, so he never had another chance to cross paths with Prometheus. However, Toho did end up making their own version of Frankenstein's monster in a different movie, but he was never called Prometheus. The monster's first and only film appearance came in 1965's Frankenstein vs. Baragon.
Kong Could Have Defeated Prometheus Between Skull Island & Now
The article specifically states that Monarch "tried to create organic Titans in the past". The word "tried" suggests that their attempt wasn't completely successful. It's possible though, that they did succeed in building one, but their real failure was in controlling it. If this was the case - and if the organic Titan in question was the MonsterVerse's Prometheus - it could mean that it became a threat to the island. This would, of course, make him a target of Skull Island's self-appointed protector, Kong.
Naturally, Kong would have defended Skull Island from Prometheus and battled him, just like he was supposed to in O'Brien's original treatment. Or, Kong was viewed as an obstacle for Monarch. Monarch's continued interest in Skull Island was made perfectly clear in the credits. Having a Titan on the same island where Monarch conducts a great deal of their research would certainly have been a dangerous challenge to any Monarch scientist. One obvious way to deal with this problem would be to eliminate him. This could have been Prometheus' true purpose.
The timeline of all this is unclear, so it could have happened at any time after the events of Kong: Skull Island in 1973. Kong could have fought, defeated, and perhaps killed Prometheus off-screen. Prometheus' defeat at the hands of King Kong could be referenced in Godzilla vs. Kong. Their fight could further the antagonistic relationship between Kong and humanity that was presented in Kong: Skull Island. It may even play a role in what sets off Godzilla's showdown with Kong, especially if Monarch wants Kong out of the way.
